Scan to PDF online free
Quick answer: Scanto turns one or more images into a single PDF entirely in your browser. No login, no watermark, files stay on your device.
Use your phone photos or scanner exports (JPG, PNG, WebP), adjust quality for smaller files, and download a ready PDF for email, forms, or school submissions.
- Multiple images → one PDF
- A4 or original image page size
- Quality slider to reduce file size
Also available: scan to PDF iPhone guide , Android workflow , and scan to computer fallback .
Frequently asked questions
Is scan to PDF free?
Yes. Scanto is free to use with no account and no watermark on downloaded PDFs.
Do you upload my scans?
No. Images are processed locally in your browser and never sent to our servers.
What image formats work?
Common formats such as JPEG, PNG, and WebP are supported through the browser canvas.
Can I scan multiple pages?
Yes. Add several images and each becomes a page in the PDF in the order you added them.
How to scan to PDF on iPhone?
Use your iPhone camera to capture pages, then upload images in Scanto and export one PDF.
How to scan to PDF on Android?
Take photos on Android, add them in Scanto Scan to PDF, and download the combined file.
Also free: Mind Map Online — create mind maps with no login.